Resumen de José del R. Millán.

• Reports on the efforts of José del R. Millán, a researcher at Dalle Molle Institute for Perceptual Artificial Intelligence in Martigny, Switzerland, to produce a mind-controlled wheelchair. Doctors call it being "locked in." Utterly paralyzed, tens of thousands of people are islands of pure thought, able to perceive the world, to feel, to dream, yet not able to communicate. For years, engineers and cognitive scientists have worked to unlock them by building brain-computer interfaces. Last year a team led by Spanish computer scientist Jose del R. Millá n unveiled software that finally makes practical the taking of electroencephalogram readings through scalp electrodes. Each user chooses states that produce distinguishable brain-wave patterns--say, doing arithmetic or imagining moving the left hand--and trains the system in a few hour-long sessions.